Friction-clutch.



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Patented January 1'?, 1905.

PATENT OEEICE.

JOHN IV. LAMBERT, OF ANDERSGN, INDIANA.

FRlCTlON-CLUTCH.

SPECIFICATION forming part of Letters Patent No. 780,359, dated January17, 1905.

Application filed pril 7, 1904:. Serial No. 202,045. i

To all whom t may concern.-

Be it known that I, JOHN IV. LAMBERT, a Citizen of the United States,and a resident of Anderson, in the county of Madison and State ofIndiana, have made a certain new and useful Invention in FrictionClutches; and I declare the following to be a full, clear, and exactdescription of the same, such as will enable others skilled in the artto which it appertains to make and use the invention, reference beinghad to the accompanying drawings,

.and to letters of reference marked thereon,

which form a part of this specification.

Figure 1 is a side view of the invention. Fig. 2 is a vertical sectionalview.

The invention relates to clutch-pulleys; and it consists in the novelconstruction and combinations of parts, as hereinafter set forth.

In the accompanying drawings, illustrating` the invention, the letter adesignates a flywheel, which is rigidly attached to a shaft CZ by a key7c. Arms m are fastened to the arms n of the iiywheel by means ofscrews.

c is a shoe-plate connected to each of the arms m by means of its iiangewhich is slotted at 'u for the passage of screws engaging the arms m.The shoe-plates are in this man ner made adjustable, being' secured inposition after adjustment by the set-screws s, which are seated in lugsf of said arms mand engage the ends of the iianges of said shoe-plates.

0n theshaft Z is the pulley p,which is loose on said shaft. An extensione of the shaft carries a hand-wheel g, the hub /t of which is threadedto engage a threaded bell piece or bearing w,which is secured to thepulley. A

nut e serves to hold the hand-wheel on the extension e.

The pulley p is provided with an inner circumferential bearing 2,extending around and forming the inside of its rim portion, and thebearing is usually beveled toward the edge of the rim, as shown.

is a rubber or friction shoe, usually of wood, which is carried by thesl1oe-plate and is designed to engage the inside rim-bearing 2 when thepulley is moved up to position.

The construction is such that when the shaft Z and wheel a are in motionthe pulley, its bell-piece, and the hand-wheel may be at rest. Theoperation is as follows: To start the pulley in motion, the hand-wheelis gradually turned to throw the pulley over to the rubblocks orfriction-shoes,which by gradual engagement with the inside rim bearingof the pulley start the latter slowly in rotation and gradually set itinto full rotation as the friction-shoes come into full engagement withsaid inside rim-bearing. All the parts then rotate together in such amanner as to obviate wear or lost motion. To stop the pullejT fromrotating, the hand-wheel is turned in the opposite direction to draw thebell-piece and attached pulley away from the friction-shoes, therebyreleasing the power from the pulley which will come to rest.

Having described the invention, whatI claim and desire to secure byLetters Patent, is-

In a friction-clutch, the combination with a power-shaft7 an extensionthereof, a wheel keyed on said shaft, and adjustable shoe-plates carriedby said wheel, of a pulley loose on said shaft and having an inside rimbearing, a threaded bearing attached to said pulley, and a hand-wheelloose on said extension and engaging' said threaded bearing,substantially as specified.

In testimony whereof Iaflix my signature in presence of two witnesses.

JOHN WV. LAMBERT.

Witnesses:

JAMES F. BOLEN, STUART T. MCGOLLUM.

